Is There a Mechanistic Effect of Saturated Fat Intake on Blood Lipids?

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I've asked this exact question a number of times and I have never heard a compelling answer. When you look at the effect of saturated fat intake on blood lipids, it's fairly linear,. The LDL cholesterol and ApoB go up in a fairly straight line. So the exact mechanistic reason for that sigmoidal curve, I've wondered this myself, I've asked this question and I've never heard of a convincing explanation. But my hope is that Kevin Mackie being one of the top dogs on lipids is going to be able to answer it.

Episode #243. It’s time to face the facts on saturated fat. Dr Gil Carvalho returns to examine a bold new study on this controversial topic, breaking down whether you need to reconsider your food choices in the wake of this study’s release.

We discuss:

Intro (00:00)
Saturated fat misunderstandings: Is saturated fat bad? (17:20)
Principle 1: Dose matters? — How much saturated fat is too much? (22:07)
Is no saturated fat the goal? (30:12)
Principle 2: Replacement nutrient matters (31:54)
Principle 3: Source matters (45:53)
Mechanisms: Saturated fat and heart disease (50:48)
Saturated fats and genetics (55:47)
Target ApoB level (59:40)
Importance of lifetime exposure (1:03:02)
Statins and heart disease risk: Are statins bad for you? (1:08:53)
Mendelian randomization studies (1:10:52)
The totality of evidence (1:15:59)
Saturated fats and total mortality (1:17:46)
Saturated fat and liver health (1:19:51)
Gaps in the research (1:20:43)
Common arguments against lowering saturated fat (1:23:52)
Outro (1:38:36)

To explore more of Dr Gil Carvalho’s work, you can find him on YouTube. You can also connect with him on Twitter and Facebook, and listen to our previous conversation in Episode #207.

Discover more insights and supporting studies in the full show notes.

Enjoy, friends.

Simon

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Simon Hill, MSc, BSc (Hons)

Creator of theproof.com and host of The Proof with Simon Hill

Author of The Proof is in the Plants

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